JPS62235989A - Accompanying pattern selector - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to an improvement of an accompaniment pattern selection device in an automatic accompaniment device such as an auto arpeggio.

[Summary of the Invention] This invention makes it possible to easily select patterns and tones suitable for a piece of music during performance by arbitrarily assigning patterns and tones such as full-pegic chords to a relatively small number of operators. .

[Prior Art] Conventionally, in automatic accompaniment devices such as auto arpeggio,
Accompaniment patterns and tones were fixedly assigned to each operator. That is, when a certain operator is operated, a predetermined accompaniment pattern and a predetermined tone (for example, piano) are selected, and an automatic accompaniment sound having the tone is generated according to the accompaniment pattern.

[Problems to be Solved by the Invention] According to the above-mentioned prior art, there are only as many selectable patterns and tones as the number of operators, and there is an inconvenience that one has to select patterns and tones that are not suitable for the number of pieces to be played. was there.

In order to alleviate this inconvenience, it may be possible to increase the number of selectable patterns and tones by adding more operators, but this has the disadvantage that the space for arranging the operators increases and the selection operation becomes complicated.

[Means for Solving the Problems] An object of the present invention is to enable selection of patterns and tones suitable for one piece of music with a simple operation.

The accompaniment pattern selection device according to the present invention includes a storage device for storing a plurality of accompaniment patterns, an operator, a storage means corresponding to the operator, and a selection device for selecting an accompaniment pattern to be assigned from among the plurality of accompaniment patterns. a writing means for writing pattern identification information into the storage means, and a reading means for reading out the accompaniment pattern from the storage device.

The writing means writes pattern identification information corresponding to the selected accompaniment pattern into the storage means based on the operation of the operator when the accompaniment pattern is selected by the selection means. Further, the reading means reads out an accompaniment pattern corresponding to the pattern identification information of the storage means from the storage device based on the operation of the operator when the first selection f stage is not selected.

[Function] According to the configuration of the present invention, any one of a plurality of accompaniment patterns can be selected and assigned to the operator, and the assignment can be changed as appropriate. Therefore, even if the number of operators is small, various accompaniment patterns can be selected during performance.

In carrying out the present invention, the tone color corresponding to the pattern identification information in the storage means may be selected based on the operation of the operator when the selection means is not in selection. You can select accompaniment patterns and tones all at once.

The accompaniment pattern selection device described above may also include a storage unit that stores tone control information for a plurality of tones, and may assign arbitrary tones to each operator in the same manner as the accompaniment pattern assignment. .

In this way, the accompaniment pattern and tone color can be assigned independently to each operator, and the accompaniment pattern and tone color related to the assignment can be selected at once during performance.

[Embodiment] Fig. 1 shows the circuit configuration of an electronic musical instrument equipped with an automatic accompaniment device according to an embodiment of the present invention. Processing such as the generation of is now controlled by a microcomputer.

Circuit configuration (Fig. 1) The bus lO includes a keyboard circuit 12, a switch/display group 14
, central processing unit (cPU) 1B, program memory 1
8, a working memory 20, a pattern memory 22, a tone memory 24, a tempo clock generator 2B, and a tone generator (TG) 2B are connected.

The keyboard circuit 12 is equipped with a one-stage or two-stage keyboard having a first keyboard area for melody performance and a second keyboard area for accompaniment, and key operation information is detected for each key of the keyboard. It has become so.

The switch/indicator group 14 includes various switches for musical tone control and performance control provided on the panel surface, and indicators related to these switches. The display will be described later with reference to FIG.

The CPo 1B executes various processes such as accompaniment pattern/a color assignment and musical tone generation according to programs stored in a program memory 18 consisting of a ROM (read only memory). This will be described later with reference to FIGS.

The working memory 20 is made up of RAM (Random Access Memory) and includes storage areas used as registers, counters, etc. during various processing by the CPIJ 1B. Registers related to the implementation of this invention will be described later.

The pattern memory 22 is composed of a ROM that stores a large number of alhesic code patterns, and the details of its storage contents will be described later with reference to FIG. 4.

The tone color memory 24 is composed of a ROM, and stores tone control data for each tone such as piano, harpsichord, plush, etc.

The tempo clock generator 26 generates tempo clock pulses according to a given tempo, and each tempo clock pulse is used as an interrupt command signal to initiate the interrupt routine of FIG. 1O.

The TG 28 is used to generate melody sound signals based on keyboard operations and to generate arpeggic chord sound signals based on data read from the pattern memory 22. Regarding the arpeggic chord sounds, there are three sounds. Has a channel.

The musical tone signal sent from the TG 2B is supplied to the speaker 32 via the output amplifier 30 and converted into sound.

Switch/display arrangement on the panel (Fig. 2) Fig. 2 shows the following:
This shows the arrangement of switches and indicators on the panel surface.

The arpeggic chord selection switch group 40 includes eight arpeggic chord selection switches 1 to 8, each of which has an arpeggic chord pattern and timbre assigned in a fixed manner in advance. Any full pegic chord pattern and any timbre can be assigned to each switch to switches 5-8.

The menu display 42 is made of, for example, a liquid crystal display, and mode switches 44A and 44B are provided on the left side thereof. Further, on the right side of the menu display 42, select switches 48A and 48B are provided, and a menu switch 48 is also provided.

When the menu switch 48 is turned on, the menu display 4
2 displays a menu for each mode selected with the mode switch 44A or 44B, and the contents of the menu can be arbitrarily selected with the select switch 48A or 48B.

In this embodiment, mode 1 is a mode for selecting an arpeggic chord pattern, for example, as shown in FIG. 3(A).
A menu is displayed as shown in . That is, the menu display 42 indicates that mode 1 is selected and the name of the arpeggic chord pattern currently selected (for example, rPAT2).
J) is displayed.

Mode 2 is a mode for selecting the tone of an arpeggic chord, and a menu is displayed, for example, as shown in FIG. 3(B). That is, the menu display 42 displays that the mode is mode 2 and the name of the currently selected arpeggic chord tone (for example, rPIANOJ).

Memory Contents of Pattern Memory (FIG. 4) FIG. 4 shows the memory contents of the pattern memory 22.

The pattern group PTG corresponds to a certain chord type (e.g., major) and a certain rhythm type (e.g., waltz), and the pattern memory 22 stores such a pattern group for each chord type. A group of patterns are stored for each rhythm type.

Pattern 9PTG - as an example! 2 arpeggic chord patterns PTN 1 to PTN 12 are included.

Patterns PTN l - PTN 4 are fixedly assigned to the arpeggic chord selection switches 1 to 4 described above, respectively, and patterns PTN 5 to PTN 1
2 can be arbitrarily determined by the arpeggic chord selection switches 5 to 8 described above.

The data formats of patterns PTN l - PTN 12 have similar configurations, so PTN is representative.
To explain the data format of N1, pattern P
TN l is pattern data for 3 channels PTI ~
It consists of P-cho 3. The pattern data for each channel has a structure in which event data EVT is sequentially arranged and an end code is arranged at the end. Each event data EVT consists of 1, for example, 2 bytes of data, the first byte being timing data N0, and the second byte being pitch data PID. The timing data TWO is
The timing at which the sound generation should start or stop is expressed by a numerical value corresponding to the count value of the tempo clock pulse mentioned above, and the pitch data is expressed by the number of semitones of the pitch relative to the root note of H at which the sound generation should start or the sound generation should be stopped. It is. 3
By using pattern data PTI to PT3 for channels, up to three notes can be generated simultaneously per one sound generation timing.

FIGS. 5(A) to 5(c) respectively show examples of storing arpeggic chord patterns, and (A) shows the pattern PT.
The contents of N 1, (B) the contents of pattern PTN 5 (pattern name rPATIJ), and (c) the contents of pattern PTN
6 (pattern name rPAτ2), and for the pattern PTN l, for example, a piano tone is preset.

Registers of Working Memory Among the registers of the working memory 20, those related to the implementation of the present invention are listed as follows.

(1) Mode counter MODE This counter increases the count value by 1 each time the mode switch 44A is turned on, and decreases the count value by 1 each time the mode switch 44B is turned on.The count value of this counter indicates the mode. It will be done.

(2) Select counter 5LCNT The count value increases by 1 each time the select switch 48A is turned on, and the count value decreases by 1 each time the select switch 48B is turned on. Based on the count value of this counter, the name, tone name, etc. are displayed on the menu display 42.

(3) Arpegic chord number register ARPNO This register registers the arpeggic chord number register (
1 to 8) are stored.

(4) Pattern number register PTNREGs~PTN
REGs These registers correspond to the arpeggic chord selection switches 5 to 8, respectively, and a pattern number is stored in each register.

(5) Tone 7 /< L/ VCNREGs
~VCNREGs These registers correspond to arpeggic chord selection switches 5 to 8, respectively.
A tone number is stored in each register.

(6) Tempo counter TCL This is a count value that increases by 1 every time a tempo clock pulse is generated from the tempo clock generator 2B, and takes a count value of 0 to 63 within one measure, and the timing when it reaches 84. It is reset to O at the end of one measure.

Main Routine (Figure 6) Figure 6 shows the flow of processing in the main routine.
The switch is abbreviated as rsWJ.

First, in step 50, when the power is turned on, an initialization routine is executed to initialize various registers, etc.
For example, counters MODE, 5LCNT, TCL, etc. are cleared.

Next, in step 52, it is determined whether there is a key event (key-on or key-off) based on the key operation information from Ill. If the result of this determination is affirmative (Y), the process moves to step 54 and key processing is performed. In this key processing,
If the key is on, the TG2B is controlled to generate the corresponding musical tone, and if the key is off, the TG28 is controlled to stop the generation of the corresponding musical tone. Furthermore, when a key is turned on in the accompaniment key range, the chord type and root note are detected based on the key depression state at that time.

After step 54, the process moves to step 56. Further, if the determination result in step 52 is negative (N), the process proceeds to step 56 without passing through step 54.

In step 5B, it is determined whether there is an on event in menu 5W48. If this judgment result is positive (Y),
Proceed to step 58. In this step 58, a menu display subroutine is executed, which is explained in the seventh step.
This will be described later with reference to the drawings. After this, the process moves to step 60.

Further, if the determination result in step 5B is negative (N), the process proceeds to step 80 without passing through step 58.

In step 60, it is determined whether the menu 5W48 is on (or is the menu being displayed). This judgment result is positive (Y)
If so, the process moves to step 62, and it is determined whether there is a change in the value of the counter MODE (mode change). If this determination result is affirmative (Y), the process returns to step 5 to change the menu display. Further, if the determination result in step 62 is negative (N), the process moves to step 64.

In step 84, it is determined whether any SW in the SW group 40 has an on event. This judgment result is positive (Y
), the process moves to step 6B. In this step 6B, a subroutine of assignment processing is executed for the SW with an on event, which will be described later with reference to FIG. After this, the process moves to step 68. Also,
If the determination result in step B4 is negative (N), the process moves to step 88 without passing through step 8B.

If the determination result in step 60 is negative (N), it means that the menu is not being displayed, and the process moves to step 70. In step 70, it is determined whether any SW in the SW group 40 has an on event.

If the result of this determination is affirmative (Y), the process moves to step 72, and a timbre processing subroutine as described later with reference to FIG. 9 is executed. Then, the process moves to step B8. Further, if the determination result in step 70 is negative (N), the process proceeds to step 68 without passing through step 72.

In step 68, other SW processes are performed, and
Returning to step 52, the above process is repeated.

Menu Display Subroutine (FIG. PJS7) In FIG. 7, in step 80, a mode corresponding to the value of the counter MODE is displayed on the menu display 42. Then, the process moves to step 82, and the value of MODE is 1 (mode l).
judge. If this determination result is affirmative (Y), the process moves to step 84.

In step 84, it is determined whether there is an on event in the select SW 48A or 48B. This judgment result is positive (Y
), the process moves to step 8B. In step 8B, if the on-event occurred at 5W48A, the value of counter 5LGNT is increased by 1, and if it is 5W4BB, the value of 5LCN↑ is decreased by 1. After this, step 88
1, and if the determination result in step 84 is negative (N
), go to step 88 without going through step 8B.
Move to.

In step 88, 5 is added to the value of 5LCNT to obtain a pattern 7/< (any of 5 to 12), and the corresponding pattern name (any of rPATIJ to rPAT8J) is displayed on the menu display 42. For example, 5L
When the value of CNT is 1, the pattern number is 6, and the menu is displayed as shown in FIG. 3(A).

After this, the process returns to the routine shown in FIG.

If it is determined in step 82 that the MODE value is not 1 (N), the process moves to step 90 and it is determined whether the MODE value is 2 (mode 2). This judgment result is negative (N)
If it is, it means that you are in a mode other than mode 1 or 2 (for example, tempo setting mode, etc.), and step 3
Move on to 2. In step 82, display processing for other modes is performed, and the process returns to the routine shown in FIG.

When the MODE value is determined to be 2 (Y) in step 90, the process moves to step 94 and selects 5w48A.
Or it is determined whether there is an on event in 48B. If this determination result is affirmative (Y), the process moves to step 9B, and as in step 8B described above, the 5L
Increase or decrease the value of CNT by 1. After this, the process moves to step 88. Further, if the determination result in step 84 is negative (N), the process moves to step 98 without passing through step 98.

In step 98, 1 is added to the value of 5LCNT to obtain a tone number, and the corresponding tone name is displayed on the menu display 4.
Display on 2. Here, the timbre number is the timbre memory 24
As an example, if tone control data for 10 tones is stored in , it is any one from 1 to 10, where 1 is piano and 2 is
For example, if the value of 5LCNT is 0, the timbre number will be 1, and the timbre number will be 1, as shown in Figure 3 (
The menu will be displayed as shown in B). After this, the process returns to the routine shown in FIG.

Assignment Processing Subroutine (Figure 8) In Figure 8, in step 100, it is determined whether the value of the register ARPNO is smaller than 5 (fixed assignment SW), and if the determination result is affirmative (Y), the Return to the routine shown in Figure 6. If the determination result is negative (N), it means that the arbitrarily assigned SW has been turned on, and the process moves to step 102.

In step 102, it is determined whether the value of the counter MODE is 1 (mode 1). If the result of this determination is affirmative (Y), the process moves to step 104, and the value of ARPNO (one of 5 to 8 corresponding to the SW turned on) is set as the control variable i.

Next, in step 10B, a pattern number (corresponding to the pattern name being displayed) is obtained by adding 5 to the values of the counters Sl and CWT, and this pattern number is set in the register P.
It is set in the register PTNREGi corresponding to i among TNREG5 to PTNREG8. As a result, the currently displayed (selected) full-pegic code pattern is assigned to the SW that has been turned on. After this, the 6th
Return to the routine shown in the figure.

If the determination result in step 102 is negative (N), the process moves to step 108, and it is determined whether the value of MODE is 2 (mode 2). If this judgment result is negative (N), it means that the mode is other than mode 1 or 2.
Return to the routine shown in FIG.

When the determination result in step 10B is affirmative (Y), the process moves to step 110, and ARPN is set as the control variable i.
Set the value of O (one of 5 to 8 that corresponds to the SW that was turned on).

Next, in step 112, 1 is added to the value of 5LCNT to obtain a tone number (corresponding to the tone name being displayed), and this tone number is stored in registers VCNREG5 to VCN.
REGa (7) Register VCNRE corresponding to i
Set it to Gi. As a result, the currently displayed (selected) full-pegic chord tone is assigned to the turned-on SW. After this, the process returns to the routine shown in FIG.

According to the processes shown in FIGS. 7 and 8 described above, any full peggic chord pattern or arpeggic code gray color can be displayed on the menu display 42, and any one of the arpeggic chord selection switches 5 to 8 can be selected. By turning on, the currently displayed pattern or tone can be assigned to the turned on SW.

Tone processing subroutine (Fig. 9) In Fig. 9, in step 120, the register ARP
It is determined whether the value of NO is smaller than 5 (if it is a fixed assignment SW). If the result of this determination is affirmative (Y), the process moves to step 122. In this step 122, ARP
Tone control data corresponding to the NO value (one corresponding to the SW turned on among 1 to 4) is read from the tone color memory 24 and sent to the TG 2B.

For example, if the arpeggic chord selection SWl is turned on, the tone number of ARPNO is l, and the T G
2B is supplied with piano tone control data. Therefore, in TG 28, it is possible to generate an arpeggic chord tone with a piano tone. After this, the process returns to the routine shown in FIG.

If the determination result in step 120 is negative (N), it means that the arbitrarily assigned SW has been turned on, and the process moves to step 124. In this step 124, the control variable i
The value of ARPNO (the value corresponding to the turned-on SW from 5 to 8) is set as .

Next, in step 12B, register VICNREGs
~VCNREGa (7) 61/gister VCNREGi corresponding to i (7) Value (assigned tone number)
For example, when the arpeggio code selection SW8 is turned on and the VCNREIl?
If tone number 10 was set to 8, then T
Tone control data corresponding to tone number 10 is supplied to G2B, making it possible to generate a full page chord tone with the tone of tone number 10. After this, the process returns to the routine shown in FIG.

Interrupt Routine (FIG. 1O) FIG. 10 shows the interrupt routine for autorhythm and autoarpeggi 1, and this routine is executed every time a tempo clock pulse is generated from the tempo clock generator 2B.

First, in step 130, it is determined whether the rhythm is running (whether the rhythm start switch is on), and if the result of this determination is negative (N), in step 132, the counter TCL is set to O, and then as shown in FIG. Return to routine.

If the determination result in step 130 is affirmative (Y), the process moves to step 134. In this step 134,
Rhythm sound processing is executed based on the TCL value, but
A detailed explanation of this process will be omitted.

Next, in step 13B, it is determined whether the value of the register ARPNO is smaller than 5. This judgment result is positive (Y)
When it is, the fixed assigned SWl~ in the SW group 4θ
4 is turned on, so step 1
Move on to 38.

In step 13B, an arpeggic chord to be read from the pattern memory 22 according to the selected rhythm type, the detected chord type, and the ARPNO value (one corresponding to the SW turned on from 1 to 4). In addition to specifying a pattern, three channels of event data of this arpeggic code pattern are read out. In this case, which event data should be read out is indicated by the address pointer Y-119. After this, the process moves to step 140.

In step 140, the read event data and TC
It is determined whether L matches the timing, and if the timing matches, the control process of TG 28 is performed. In other words, if the read event data indicates a sound generation, the pitch data in the event data and the detected root note are TG 28 is controlled to generate one or more musical tones based on the event data read out, and if the read event data instructs to stop generating the musical tones, it stops generating the musical tones that are currently being generated and corresponds to the pitch data in the event data. (Controls TG 28. Also, in either case, changes the address value of the address pointer to enable reading of the next event data.
When the timings do not match, the TG 28 is not controlled or the address value is changed.

After step 140, the value of TCL is incremented by 1 in step 142, and then the process moves to step 144, where it is determined whether the value of TGL is smaller than 64 (within one measure). If the result of this determination is affirmative (Y), the process returns to the routine shown in FIG. Also, the determination result in step 144 is negative (N).
If so, one measure has ended, and step 146
After setting TGL to 0, the routine returns to the routine shown in FIG.

By the way, when the determination result in step 138 is negative (N), it means that any of the arbitrarily assigned SWs 5 to 8 in the SW group 40 is turned on, and step 148
Move to. In this step 14B, A is set as the control variable i.
Set the value of RPNO (the one corresponding to the SW turned on from 5 to 8).

Then, the process moves to step 150.

In step 150, the selected rhythm type.

Detected code type and register PT corresponding to i
The arpeggic code pattern to be read from the pattern memory 22 is specified in accordance with the value of NREGi (assigned pattern number), and the event data is read in the same manner as step 138 described above. After this, step 1
40, the processing from step 140 onwards is executed in the same manner as described above, and the process returns to the routine of FIG.

Other Embodiments In the above embodiment, arpeggic chord selection switches 5 to
Although patterns and tones can be assigned independently to each switch of 8, it is also possible to assign patterns and tones as a set.To do this, for example, in the tone processing in FIG. /P12B TEVcNREG+
(7) Alternative 4: The timbre control data corresponding to the Tesono pattern pick-up (which is also the timbre number) may be read by referring to PTNREGi.

In the above embodiment, the pattern memory 22 is a ROM, but it may also be a RAM so that the user can program an accompaniment pattern as desired.

[Effects of the Invention] As described above, according to the present invention, arbitrary accompaniment patterns and tones are assigned to each controller, so it is possible to enjoy a wide variety of automatic accompaniment with a small number of controllers. It is something.

[Brief explanation of drawings]

FIG. 1 is a block diagram showing the circuit configuration of an electronic musical instrument equipped with an automatic accompaniment device according to an embodiment of the present invention. FIG. 2 is a top view showing the arrangement of switches and indicators on the panel. ) and (B) are top views showing display examples of the menu display, FIG. 4 is a diagram showing the storage contents of the pattern memory, and FIGS. 5(A) to (c) are the storage of arpeggic chord patterns. A staff diagram showing an example; Fig. 6 is a flowchart showing the main routine; Fig. 7 is a flowchart showing the menu display subroutine; Fig. 8 is a flowchart showing the assignment processing subroutine; Fig. 9 is a tone color chart. Flowchart showing a processing subroutine. FIG. 1O is a flowchart showing a 1-interrupt routine. 10・°°Babas 1B-・Central processing unit, 1B
...Program memory, 20...Waking memory, 22...Pattern memory, 24...Tone memory, 40...Arpeg chord selection switch group, 4
2...Menu display, 44A, 44B...Mode switch, 46A, 413B...Select switch, 48...Menu switch. Applicant Nippon Gakki Mfg. Co., Ltd. Agent Patent Attorney Toshiaki Izawa Figure 2 (Switch on the 1st table, layout shown in Figure 3)
IC Meshe table main unit store display kej】Cylinder 4: 2 (He〇Kumme Nanasu no Kurotobironai) PTNt PTN5 (PA 1) 2 cho N6 (PA 2) Kyo Otsu 7 is also in the row )

Claims (1)

[Claims] 1. (a) a storage device for storing a plurality of accompaniment patterns; (b) an operator; (c) a storage means corresponding to the operator; and (d) the plurality of accompaniment patterns. (e) selection means for selecting an accompaniment pattern to be assigned from among the accompaniment patterns; and (e) when an accompaniment pattern is selected by the selection means, the accompaniment pattern corresponding to the accompaniment pattern being selected is stored in the storage means based on the operation of the operator. writing means for writing pattern identification information; (f) reading means for reading out an accompaniment pattern corresponding to the pattern identification information from the storage device based on the operation of the operator when the selection means is not in selection; Equipped with an accompaniment pattern selection device. 2. In the accompaniment pattern selection device according to claim 1, the tone color corresponding to the pattern identification information is selected based on the operation of the operator when the selection means is not in selection. Characteristic accompaniment pattern selection device. 3. (a) a first storage section that stores a plurality of accompaniment patterns; (b) a second storage section that stores timbre control information for a plurality of tones; (c) an operator; (d) this (e) a first selection means for selecting an accompaniment pattern to be assigned from among the plurality of accompaniment patterns; (f) an accompaniment pattern is selected by the first selection means; (g) a timbre to be assigned among the plurality of timbres; (g) a timbre to be assigned among the plurality of timbres; (h) when a timbre is selected by the second selection means, storing timbre identification information corresponding to the selected timbre in the storage means based on the operation of the operator; (i) accompaniment corresponding to the pattern identification information from the first storage section based on the operation of the operator when the first and second selection means are not in selection; 1st to read the pattern
(j) reading timbre control information corresponding to the timbre identification information from the second storage section based on the operation of the operator when the first and second selection means are not in selection; An accompaniment pattern selection device comprising a second reading means.